Operations
Mostrando 1-12 de 2144 artigos, teses e dissertações.
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1. Syndecan-1 as a marker to predict acute kidney injury after isolated coronary artery bypass graft operations
SUMMARY OBJECTIVE: Postoperative acute kidney injury is an important problem that can occur after coronary artery bypass graft operations, and it is important to identify risky patient groups preoperatively. This study aimed to investigate the importance of preoperative syndecan-1 levels in predicting acute kidney injury after elective coronary artery bypas
Revista da Associação Médica Brasileira. Publicado em: 2023
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2. Bilateral versus unilateral erector spinae plane block for postoperative analgesia in laparoscopic cholecystectomy: a randomized controlled study
Abstract Introduction Laparoscopic cholecystectomy (LC) is the common surgical intervention for benign biliary diseases. Postoperative pain after LC remains as an important problem, with two components: somatic and visceral. Trocar entry incisions lead to somatic pain, while peritoneal distension with diaphragm irritation leads to visceral pain. Following i
Brazilian Journal of Anesthesiology. Publicado em: 2023
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3. Management of appendicitis in coronavirus disease 2019, severe acute respiratory syndrome coronavirus 2, pandemic era: decreasing incidence with increasing complicated cases?
SUMMARY OBJECTIVE: This study aimed to examine the impact of the coronavirus disease 2019 (COVID-19) pandemic on appendicitis and the relevant outcomes in a tertiary hospital, designated as a “pandemic institution” by the Ministry of Health, between pre-COVID-19 and post-COVID-19, i.e., between 2019 and 2020, of the identical period in terms of the annu
Revista da Associação Médica Brasileira. Publicado em: 2022
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4. Hemodynamic outcome of different ventilation modes in laparoscopic surgery with exaggerated trendelenburg: a randomised controlled trial
Abstract Purpose: To compare hemodynamic effects of two different modes of ventilation (volumecontrolled and pressure-controlled volume guaranteed) in patients undergoing laparoscopic gynecology surgeries with exaggerated Trendelenburg position. Methods: Thirty patients undergoing laparoscopic gynecology operations were ventilated using either volume-contr
Brazilian Journal of Anesthesiology. Publicado em: 2022
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5. Thermal Infrared Enthalpimetry Method for the Determination of Hypochlorite in Bleaching Solutions
Thermal infrared enthalpimetry (TIE) was used for hypochlorite determination in commercial hypochlorite-based bleaching solutions. Experimental parameters were evaluated for the reaction with a hydrogen peroxide solution. The most relevant conditions were 5% H2O2 (m/m) solution, stirring speed of 250 rpm, dispensing rate of 0.57 mL s-1, and 10 s after reacti
Journal of the Brazilian Chemical Society. Publicado em: 2022
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6. Comparative evaluation of three classical sizing methods of vibrating screens
Abstract The sizing of vibrating screen machines can be done by various methods, most of them based on the classic method of Allis Chalmers (ACM). Due to the wide diffusion and applicability, the Peter King (PKM) and Karra (KM) methods present great technical relevance as well. The objective of this study was to evaluate and compare the results of the screen
REM - International Engineering Journal. Publicado em: 2022
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7. Impact of COVID-19 on Cardiothoracic Surgery: Experience of Alexandria (Egypt) Main University Hospital
ABSTRACT Introduction: The current coronavirus pandemic has greatly strained the limited resources that had previously maintained the sustainability of the high-cost cardiothoracic surgeries in low-income countries like Egypt. Methods: Hospital databases and patients’ records were reviewed to evaluate the impact of the pandemic on the workflow and waitin
Brazilian Journal of Cardiovascular Surgery. Publicado em: 2022
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8. The BigFLUX Magnetic Matrix Technology
Abstract The Magnetic separation of ultra-fine ore particles has always posed a challenge to the JONES/WHIMS process. Despite many advances in this technology, no effective improvement has been made to its core component: The Magnetic Matrix. The current approach to separate ultra-fine particles teaches that the gap of the matrix and its teeth size must be s
REM - International Engineering Journal. Publicado em: 2022
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9. Surgeon experience, robotic perioperative outcomes, and complications in gynecology
SUMMARY OBJECTIVE: Robotic surgery is currently on the rise and has been widely applied all over the world. Gynecology offers great opportunities for the development of innovative techniques due to the magnitude of surgical needs. The aim of this study was to correlate perioperative complications, surgical time, and length of hospital stay with surgical dia
Revista da Associação Médica Brasileira. Publicado em: 2022
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10. Validation of the psychological safety, psychological empowerment, intrapreneurial behaviour and individual performance measurements
Abstract Purpose The purpose of this study is to assess the validity of the psychological safety (PS), psychological empowerment (PE), intrapreneurial behaviour (IB) and individual performance (IP) construct measurements originally developed in Western individualistic cultures. Design/methodology/approach Proportionate stratified systematic sampling was us
RAUSP Management Journal. Publicado em: 2022
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11. Energy performance of farm tractor with single radial versus dual diagonal wheels in harrowing operations
RESUMO A roda do trator agrícola interage diretamente com o solo, afetando seu desempenho energético e operacional. Diversos trabalhos estudam as particularidades entre configurações de rodado buscando interpretar o tipo e arranjo mais eficiente de rodagem, entretanto ainda há uma demanda de estudos que elucidem a tomada de decisão quanto a necessidade
Revista Brasileira de Engenharia Agrícola e Ambiental. Publicado em: 2022
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12. Management of rice straw in rice-soybean succession in tropical lowland
ABSTRACT This study aimed to analyze rice straw alternative managements to maximize the rice-soybean succession yield and to quantify their impacts on soil properties. The experiment was set up in a completely randomized design with six replicates. Nine rice straw managements were evaluated: straw burning (M1), straw harvesting (M2), straw incorporation with
Revista Ceres. Publicado em: 2022